proficiencies的翻译，读音
释义：
(proficiency 的复数) n. 精通, 熟练, 精练
plural of proficiency
n. the quality of having great facility and competence
n. skillfulness in the command of fundamentals deriving from practice and familiarity
plural of proficiency
n. the quality of having great facility and competence
n. skillfulness in the command of fundamentals deriving from practice and familiarity